2255765 has 16 divisors (see below), whose sum is σ = 2868480. Its totient is φ = 1700160.

The previous prime is 2255761. The next prime is 2255767. The reversal of 2255765 is 5675522.

2255765 = 168² + 169² + ... + 225².

2255765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2255765 - 2² = 2255761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6650 + ... + 6980.

It is an arithmetic number, because the mean of its divisors is an integer number (179280).

2^2255765 is an apocalyptic number.

It is an amenable number.

2255765 is a deficient number, since it is larger than the sum of its proper divisors (612715).

2255765 is a wasteful number, since it uses less digits than its factorization.

2255765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412.

The product of its digits is 21000, while the sum is 32.

The square root of 2255765 is about 1501.9204373069. The cubic root of 2255765 is about 131.1488896262.

It can be divided in two parts, 22557 and 65, that added together give a palindrome (22622).

The spelling of 2255765 in words is "two million, two hundred fifty-five thousand, seven hundred sixty-five".